Platform-scale.



T. V. MALONE.

PLATFORM SCALE.

APPLICATION FILED JULY6,1908.

Patented June 1, 1909.

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APPLICATION FILED JULY 6, 1908.

Patented June 1, 1909.

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THOMAS V. MALONE, OF MINNEAPOLIS, MINNESOTA.

PLATFORM-SGALE.

No. 923,285. Specification of Letters Patent. Patented June 1, 1909.

Application filed July 6, 1908. Serial No. 442,080.

To all whom it may concern:

Be it known that I, THOMAS V. hIALONE, l a citizen of the United States,residing at I Minneapolis, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements inPlatform- Scales, of which the following is a specification.

. I My invention relates to platform scales,

and its object is to rovide an attachment to such scales that wil makethem more efficient for the weighing of flour and like material in sacksthe mouths of which are open at the time of the weighing.

In milling flour and some other products it is common to fill the sacksby means of a packing machine and then to pass the sacks in successionto the weighing-scales beforethe mouths of the sacks are closed, so thatthe contents of a sack ean be readily increased or diminished as may berequired to make the successive packages of uniform and the desiredweight. In conducting this opero l ation more or less of the materialfalls onto the platform of the scales as each successive sack isreceived and removed, and the material accumulating on the platformaffects the accuracy of the weighing, and frequent removal of suchmaterial is required to make the contents of the packages of uniformweight.

The purpose of, and the end effected by, my improvement is the provisionof a suplemental platform supported by the weig mg mechanism and adaptedto hold the sack while it is being weighed, and the interpositionbetween the two platforms of a suitable shield for preventing materialfrom falling onto the lower platform.

My improvements are illustrated in the accompanying drawings, in whichFigure 1 is a front elevation of a platform scale embodying mimprovement; Fig. 2 is a side elevation, an Fig. 3 a plan view of thesame; Fig.,4 is a transverse section, enlarged, on the line a:'r of Fig.2; and Fig- 5 is a horizontal section on the plane of the line zz ofFig. 4.

In the drawings 1 designates the scalel'beam, 2 the supports therefor,and 3 the platform of an ordinary platform-scale. l i claim no inventionin these parts and the 1scale may be of any well knovm or suitable um.

To prevent flour or other material from i accumulating on the platformor within the base, I preferably cover the entire base and platform witha hood or housing composed i of sides 4 and a top 5, preferably inclined'i'lownwardly from the center. This housing may rest on the floor freefrom contact with the scale. The center of the top of the housing isopen and the opening is suri rounded by a circular flange 6 extendingup- 1 ward from the housing cover. At the center of the platform isattached a plate 7 providing a socket 8, and in the socket is screwed,or otherwise secured, a short upright post 9 which extends through thecentral opening in the housing cover. On the head of the post isscrewed, or otherwise secured, a hub 10 from which extend radial arms11. The hub is provided with two downwardly extending circular flanges,12 and 13, respectively, providing an intermediate annular space 14. Theinner or socket flange 12 furnishes the means for adjustable attachmentto the post 9; and the two flanges cooperate with the housing flange 6,which extends within the annular space 14, to make a comparatively tightjoint between the fixed and movable parts.

To the arms 11 is secured a light, preferably an open-work,weighing-platform 15, that may be provided with an upright portion 16 atone side, against which the sacks of material may he leaned for support.

It will be apparent that the supplemental weighing-platform and itsconnections are supported by the main platform free from contact withstationary arts, and that in weighing articles it is o y necessary todeduct the weight of the added parts.

Applicant has for some time had such Wei hing apparatus in use for theweighing of fllled but open sacks in large flour mills where such sacksare weighed and handled in great numbers, and where rapidity andaccuracy are necessary, and their use has shown a very decidedimprovement over the former methods of weighing;

Having described my invention, what I claim and desire to secure byLetters Patent In a latform scale, the combination with the mam platformand a housing therefor, of a cover for the platform supported bythehousing, a 0st secured on the platform and extending oosely through thecover, and an open-work weighing platform mounted on the post above thecover and provided with a back, substantially as and for the purpose setforth. 15

, THOMAS V. MALONE. Witnesses i P. H. GUNoK L, H. A. BOWMAN.

